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Latif S, Akram B, Saraj CS, Khan BA, Ali M, Akhtar J. A single step wet chemical approach to bifunctional ultrathin (ZnO) 62(Fe 2O 3) 38 dendritic nanosheets. RSC Adv 2023; 13:23038-23042. [PMID: 37529361 PMCID: PMC10388154 DOI: 10.1039/d3ra04795d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023] Open
Abstract
At the ultrathin scale, nanomaterials exhibit interesting chemical and physical properties, like flexibility, and polymer-like rheology. However, to limit the dimensions of composite nanomaterials at the ultrathin level is still a challenging task. Herein, by adopting a new low temperature single step and single pot wet chemical approach, we have successfully fabricated two dimensional (2D) mixed oxide ZnO-Fe2O3 dendritic nanosheets (FZDNSs). Various control experimental outcomes demonstrate that precursor salts of both the metals are crucial for the formation of stable 2D FZDNSs. The obtained FZDNSs not only exhibit the best photoreduction performance but also much enhanced electrocatalytic performance. This work will provide a promising avenue for the synthesis of cost effective transition metal mixed oxide based 2D nanosheets having wide ranging applications.
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Affiliation(s)
- Saba Latif
- Department of Chemistry, University of Azad Jammu & Kashmir Muzaffarabad AJ&K Pakistan
| | - Bilal Akram
- Department of Chemistry, Women University of Azad Jammu & Kashmir Bagh AJ&K Pakistan
| | - Chaudry Sajed Saraj
- GPL, State Key Lab. of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Changchun 130033 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Bilal Ahmad Khan
- Department of Chemistry, University of Azad Jammu & Kashmir Muzaffarabad AJ&K Pakistan
| | - Mudussar Ali
- Department of Chemistry, Tsinghua University Beijing China
| | - Javeed Akhtar
- Materials Lab, Department of Chemistry, Mirpur University of Science and Technology Mirpur AJ&K Pakistan
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2
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Shi Y, Zhao C, Chen X, Chen C, Zhou X, Chen J. DFT study on the electronic structure and optical properties of an Au-deposited α-Fe 2O 3 (001) surface. RSC Adv 2022; 12:5447-5457. [PMID: 35425558 PMCID: PMC8981397 DOI: 10.1039/d1ra07933f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/01/2022] [Indexed: 11/21/2022] Open
Abstract
The electronic structure and optical properties of gold clusters deposited on an α-Fe2O3 surface were studied by using density functional theory (DFT), with a special emphasis on the influence of Au cluster sizes. There is a strong interaction between Au clusters and the α-Fe2O3 surface, and the binding energy increases with an increase of Au cluster size. The Au atoms of the gold cluster are bonded to the iron atoms of the α-Fe2O3 surface for the Au/α-Fe2O3 system, and the electrons transfer from the Au cluster to the α-Fe2O3 surface with the largest number of electrons transferred for 4Au/α-Fe2O3. The peaks of the refractive index, extinction coefficient and dielectric function induced by Au clusters appear in the visible range, which results in the enhanced optical absorption for the Au/α-Fe2O3 system. The optical absorption intensifies with increasing Au cluster size in the visible range, showing a maximum value for 4Au/α-Fe2O3. Further increasing the Au cluster size above 4Au results in a decrease in absorption intensity. The results are in good agreement with those of the refractive index, extinction coefficient and dielectric function. The electronic structure and optical properties of gold clusters deposited on an α-Fe2O3 surface were studied by using density functional theory (DFT), with a special emphasis on the influence of Au cluster sizes.![]()
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Affiliation(s)
- Yong Shi
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 China
| | - Cuihua Zhao
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 China.,Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University Nanning 530004 China
| | - Xing Chen
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 China
| | - Cuiting Chen
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 China
| | - Xi Zhou
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 China
| | - Jianhua Chen
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 China.,Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University Nanning 530004 China
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3
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Cao X. Zinc ferrite nanoparticles: simple synthesis via lyophilisation and electrochemical application as glucose biosensor. Nano Ex 2021. [DOI: 10.1088/2632-959x/abfdd2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
With increasing diabetes patients in the near future, development of non-enzymatic glucose biosensor is highly demanded due to their greater sensitivity and resistance to external stimuli compared to enzymatic biosensors. Zinc ferrite (ZnFe2O4, ZFO) nanoparticles (NPs) were fabricated using a simple solution combustion method together with freeze drying. The NPs have high crystallinity, large aspect ratios and narrow size distributions. Plenty of defects have been induced during lyophilisation and greatly improves the glucose biosensing performance during electrochemistry test. The freeze-dried ZFO NPs are highly crystalline and agglomeration-free, these assures the sample with high sensitivity, superior selectivity, low detection limit and outstanding stability for electrochemical glucose biosensing.
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Khurram R, Wang Z, Ehsan MF. α-Fe 2O 3-based nanocomposites: synthesis, characterization, and photocatalytic response towards wastewater treatment. Environ Sci Pollut Res Int 2021; 28:17697-17711. [PMID: 33403627 DOI: 10.1007/s11356-020-11778-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
Recently, rising distress over ecological pollution owing to water contamination by coloring effluents primarily due to dyes is of growing concern. The development of semiconductor/magnetic oxide-based nanomaterials has verified to be a potent remediation means for water pollution. In the present article, the fabrication of nanocomposites was carried out by the facile hydrothermal method. The ZnO and ZnSe nanoparticles were in situ formed on the α-Fe2O3 layer, thereby forming a heterojunction. The prepared α-Fe2O3/ZnSe nanocomposite possessed a degradation of 98.9% for a Congo red aqueous solution of 100 ppm. The α-Fe2O3/ZnO nanocomposite showed only 26% degradation of 100 ppm dye solution depicting a poor photocatalytic performance. This is attributed to the formation of recombination-enhanced configuration (type-I heterostructure) in the α-Fe2O3/ZnO nanocomposite (NC). In contrast, α-Fe2O3/ZnSe NC accomplished a higher and enhanced photocatalytic response. The key rationale for elevated photocatalytic response is the establishment of a recombination-free configuration (type-II heterostructure). Thus, α-Fe2O3/ZnSe NC known as one of outstanding nanoparticle-nanocomposite photocatalysts was synthesized under mild conditions exclusive of some multifaceted post-treatment, for dye abatement process.
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Affiliation(s)
- Rooha Khurram
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Zhan Wang
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China.
| | - Muhammad Fahad Ehsan
- Department of Chemistry, School of Natural Sciences (SNS), National University Of Sciences And Technology (NUST), H-12, Islamabad, 44000, Pakistan.
- Department of Chemistry, Cape Breton University, 1250 Grand Lake Road, Sydney, NS, B1P 6L2, Canada.
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Al-namshah KS. Impact of CuO incorporation on the photocatalytic enhancement of the mesostructured Fe2O3 nanocomposite. Appl Nanosci 2021; 11:467-76. [DOI: 10.1007/s13204-020-01605-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Zheng M, Xing C, Zhang W, Cheng Z, Liu X, Zhang S. Hydrogenated hematite nanoplates for enhanced photocatalytic and photo-Fenton oxidation of organic compounds. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kumar Inwati G, Kumar P, Roos WD, Swart HC. Thermally induced structural metamorphosis of ZnO:Rb nanostructures for antibacterial impacts. Colloids Surf B Biointerfaces 2020; 188:110821. [PMID: 31999966 DOI: 10.1016/j.colsurfb.2020.110821] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/22/2019] [Accepted: 01/21/2020] [Indexed: 11/24/2022]
Abstract
In this work, we report on the synthesis of pure and Rb doped ZnO (ZnO:Rb) nanoparticles by a simple combustion technique followed by thermal treatment in an open-air atmosphere. The prepared samples were characterized using UV-vis spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), photoluminescence, Raman spectroscopy and scanning electron microscopy. The wurtzite hexagonal phase structure of ZnO and a secondary phase of Rb2ZnO2 was observed after doping ZnO with Rb. FTIR and DSC confirmed the functional groups and the thermal stability of the ZnO samples. Field emission scanning electron microscope showed an irregular shaped agglomerated morphology for the ZnO:Rb samples. The chemical states of the undoped and Rb doped samples were identified using X-ray photoelectron spectroscopy for both pure and ZnO:Rb samples. In addition, ZnO:Rb samples exhibit good antimicrobial activities against Bacillus subtilis with a change in antibacterial behaviour as compared to pure ZnO structures indicating their multifunctional applications.
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Li A, Liu Y, Xu X, Zhang Y, Si Z, Wu X, Ran R, Weng D. MOF-derived (MoS2, γ-Fe2O3)/graphene Z-scheme photocatalysts with excellent activity for oxygen evolution under visible light irradiation. RSC Adv 2020; 10:17154-17162. [PMID: 35521476 PMCID: PMC9053387 DOI: 10.1039/d0ra02083d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/17/2020] [Indexed: 11/21/2022] Open
Abstract
Constructing Z-scheme heterojunctions is considered as an effective strategy to obtain catalysts of high efficiency in electron–hole separation in photocatalysis. Unfortunately, suitable heterojunctions are difficult to fabricate because the direct interaction between two semiconductors may lead to unpredictable negative effects such as electron scattering or electron trapping due to the existence of defects which causes the formation of new substances. Furthermore, the van der Waals contact between two semiconductors also results in bad electron diffusion. In this work, a MOF-derived carbon material as a Z-scheme photocatalyst was synthesized via one-step thermal treatment of MoS2 dots @Fe-MOF (MIL-101). Under visible light irradiation, the well-constructed Z-scheme (MoS2, γ-Fe2O3)/graphene photocatalyst shows 2-fold photocatalytic oxygen evolution activity (4400 μmol g−1 h−1) compared to that of γ-Fe2O3/graphene (2053 μmol g−1 h−1). Based on ultraviolet photoelectron spectrometry (UPS), Mott–Schottky plot, photocurrent and photoluminescence spectroscopy (PL) results, the photo-induced electrons from the conduction band of γ-Fe2O3 could transport quickly to the valence band of MoS2via highly conductive graphene as an electron transport channel, which could significantly enhance the electron–hole separation efficiency as well as photocatalytic performance. The heterojunction between MoS2 and γ-Fe2O3 was constructed via linking by in situ formed graphene, which resulted in a good photocatalyst for the oxygen evolution reaction, showing O2 evolution activity of 4400 μmol g−1 h−1.![]()
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Affiliation(s)
- Ang Li
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Yuxiang Liu
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Xuejun Xu
- College of Materials Science and Energy Engineering
- Foshan University
- Foshan City
- China
| | - Yuanyuan Zhang
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Zhichun Si
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Xiaodong Wu
- The Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing City
- China
| | - Rui Ran
- The Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing City
- China
| | - Duan Weng
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
- The Key Laboratory of Advanced Materials of Ministry of Education
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9
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Muthukumar P, Pannipara M, Al-Sehemi AG, Anthony SP. Highly enhanced bifunctional electrocatalytic activity of mixed copper–copper oxides on nickel foam via composition control. NEW J CHEM 2020. [DOI: 10.1039/d0nj02311f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fabricating Cu2O–CuO and CuO directly on the conducting nickel foam resulted in highly enhanced OER and HER electrocatalytic activity in an alkaline medium, respectively.
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Affiliation(s)
- Pandi Muthukumar
- Department of Chemistry
- School of Chemical & Biotechnology, SASTRA Deemed University
- Thanjavur-613401
- India
| | - Mehboobali Pannipara
- Department of Chemistry
- King Khalid University
- Abha 61413
- Saudi Arabia
- Research center for Advanced Materials Science
| | - Abdullah G. Al-Sehemi
- Department of Chemistry
- King Khalid University
- Abha 61413
- Saudi Arabia
- Research center for Advanced Materials Science
| | - Savarimuthu Philip Anthony
- Department of Chemistry
- School of Chemical & Biotechnology, SASTRA Deemed University
- Thanjavur-613401
- India
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10
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Affiliation(s)
- Ulises A. Agú
- Centro de Investigación y Tecnología Química, UTN-CONICET, Facultad Regional Córdoba, Maestro López esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina
| | - Silvia N. Mendieta
- Centro de Investigación y Tecnología Química, UTN-CONICET, Facultad Regional Córdoba, Maestro López esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina
| | - María V. Gerbaldo
- Centro de Investigación y Tecnología Química, UTN-CONICET, Facultad Regional Córdoba, Maestro López esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina
| | - Mónica E. Crivello
- Centro de Investigación y Tecnología Química, UTN-CONICET, Facultad Regional Córdoba, Maestro López esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina
| | - Sandra G. Casuscelli
- Centro de Investigación y Tecnología Química, UTN-CONICET, Facultad Regional Córdoba, Maestro López esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina
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11
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Subramaniam MN, Goh PS, Tan YH, Chiong SJ, Lau WJ, Ng BC, Ismail AF, Chuah JY, Lai SO. Antifouling Improvement of Polyethersulfone Membrane Incorporated with Negatively Charged Zinc–Iron Oxide for AT-POME Colour Removal. Arab J Sci Eng 2019; 44:5571-80. [DOI: 10.1007/s13369-019-03858-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Theerthagiri J, Chandrasekaran S, Salla S, Elakkiya V, Senthil R, Nithyadharseni P, Maiyalagan T, Micheal K, Ayeshamariam A, Arasu MV, Al-dhabi NA, Kim H. Recent developments of metal oxide based heterostructures for photocatalytic applications towards environmental remediation. J SOLID STATE CHEM 2018; 267:35-52. [DOI: 10.1016/j.jssc.2018.08.006] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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14
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Patnaik S, Das KK, Mohanty A, Parida K. Enhanced photo catalytic reduction of Cr (VI) over polymer-sensitized g-C3N4/ZnFe2O4 and its synergism with phenol oxidation under visible light irradiation. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.04.008] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Lee C, Shin K, Lee YJ, Jung C, Lee HM. Effects of shell thickness on Ag-Cu 2 O core-shell nanoparticles with bumpy structures for enhancing photocatalytic activity and stability. Catal Today 2018; 303:313-9. [DOI: 10.1016/j.cattod.2017.08.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Ashokraju M, Mohan V, Murali K, Rao MV, Raju BD, Rao KSR. Formic acid assisted hydrogenation of levulinic acid to $$\upgamma $$ γ -valerolactone over ordered mesoporous $$\hbox {Cu/Fe}_{2}\hbox {O}_{3}$$ Cu/Fe 2 O 3 catalyst prepared by hard template method. J CHEM SCI 2018; 130. [DOI: 10.1007/s12039-018-1418-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Behera A, Kandi D, Majhi SM, Martha S, Parida K. Facile synthesis of ZnFe 2O 4 photocatalysts for decolourization of organic dyes under solar irradiation. Beilstein J Nanotechnol 2018; 9:436-446. [PMID: 29515956 PMCID: PMC5815280 DOI: 10.3762/bjnano.9.42] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 01/17/2018] [Indexed: 05/27/2023]
Abstract
ZnFe2O4 was fabricated by a simple solution-combustion method. The structural, optical and electronic properties are investigated by XRD, TEM, FESEM, UV-vis DRS, PL, FTIR and photocurrent measurements. The photocatalytic activity of the prepared material is studied with regard to the degradation of rhodamine B (Rh B) and Congo red under solar irradiation. The kinetic study showed that the material exhibits zeroth and first order reaction kinetics for the degradation of Rh B and Congo red, respectively. The photocatalytic behaviour of ZnFe2O4 was systematically studied as a function of the activation temperature. ZnFe2O4 prepared at 500 °C showed the highest activity in degrading Rh B and Congo red. The highest activity of ZnFe2O4-500 °C correlates well with the lowest PL intensity, highest photocurrent and lowest particle size.
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Affiliation(s)
- Arjun Behera
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha ‘O’ Anusandhan (deemed to be university), Bhubaneswar-751030, India
| | - Debasmita Kandi
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha ‘O’ Anusandhan (deemed to be university), Bhubaneswar-751030, India
| | - Sanjit Manohar Majhi
- Department of Electronic Information Materials Engineering, Division of Advanced Materials Science and Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Satyabadi Martha
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha ‘O’ Anusandhan (deemed to be university), Bhubaneswar-751030, India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha ‘O’ Anusandhan (deemed to be university), Bhubaneswar-751030, India
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Muthukumar P, Kumar VV, Reddy GRK, Kumar PS, Anthony SP. Fabrication of strong bifunctional electrocatalytically active hybrid Cu–Cu2O nanoparticles in a carbon matrix. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02048a] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Earth-abundant copper-based hybrid Cu–Cu2ONPs@C in the carbon matrix exhibited enhanced OER and HER catalytic activity compared to pure Cu2O and CuNPs@C.
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Affiliation(s)
- Pandi Muthukumar
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - Vadivel Vinod Kumar
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | | | - P. Suresh Kumar
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
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Florent M, Giannakoudakis DA, Wallace R, Bandosz TJ. Mixed CuFe and ZnFe (hydr)oxides as reactive adsorbents of chemical warfare agent surrogates. J Hazard Mater 2017; 329:141-149. [PMID: 28131041 DOI: 10.1016/j.jhazmat.2017.01.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/15/2017] [Accepted: 01/20/2017] [Indexed: 06/06/2023]
Abstract
Two sets of zinc-iron and copper-iron mixed (hydr)oxides were prepared by a simple co-precipitation method. Either nitrate or chloride was a source of the metals. The decontamination ability of the materials was tested in closed vials saturated with vapors of 2-chloroethyl ethyl sulfide (CEES) or dimethyl chlorophosphate (DMCP), a blister agent and a nerve agent surrogate, respectively. In both cases, the weight uptakes on the mixed oxides were superior to the ones reported for the pure metal oxides or hydroxides. When exposed to CEES for 5days, zinc-iron (hydr)oxides show much higher activity than the copper-iron ones. The products of reactions in the vessel headspace were investigated by GC/MS and on the surface by FTIR. Ethyl vinylsulfide and chloromethane are the main products of the reactive adsorption of CEES and DMCP, respectively. This indicates that CEES is mainly degraded by dehydrochlorination and DMCP- by hydrolysis.
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Affiliation(s)
- Marc Florent
- Department of Chemistry, The City College of New York, New York, NY 10031, USA
| | - Dimitrios A Giannakoudakis
- Department of Chemistry, The City College of New York, New York, NY 10031, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA
| | - Rajiv Wallace
- Department of Chemistry, The City College of New York, New York, NY 10031, USA
| | - Teresa J Bandosz
- Department of Chemistry, The City College of New York, New York, NY 10031, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA.
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Kumar A, Rout L, Achary LSK, Dhaka RS, Dash P. Greener Route for Synthesis of aryl and alkyl-14H-dibenzo [a.j] xanthenes using Graphene Oxide-Copper Ferrite Nanocomposite as a Recyclable Heterogeneous Catalyst. Sci Rep 2017; 7:42975. [PMID: 28233832 PMCID: PMC5324042 DOI: 10.1038/srep42975] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/17/2017] [Indexed: 12/01/2022] Open
Abstract
A facile, efficient and environmentally-friendly protocol for the synthesis of xanthenes by graphene oxide based nanocomposite (GO-CuFe2O4) has been developed by one-pot condensation route. The nanocomposite was designed by decorating copper ferrite nanoparticles on graphene oxide (GO) surface via a solution combustion route without the use of template. The as-synthesized GO-CuFe2O4 composite was comprehensively characterized by XRD, FTIR, Raman, SEM, EDX, HRTEM with EDS mapping, XPS, N2 adsorption-desorption and ICP-OES techniques. This nanocomposite was then used in an operationally simple, cost effective, efficient and environmentally benign synthesis of 14H-dibenzo xanthene under solvent free condition. The present approach offers several advantages such as short reaction times, high yields, easy purification, a cleaner reaction, ease of recovery and reusability of the catalyst by a magnetic field. Based upon various controlled reaction results, a possible mechanism for xanthene synthesis over GO-CuFe2O4 catalyst was proposed. The superior catalytic activity of the GO-CuFe2O4 nanocomposite can be attributed to the synergistic interaction between GO and CuFe2O4 nanoparticles, high surface area and presence of small sized CuFe2O4 NPs. This versatile GO-CuFe2O4 nanocomposite synthesized via combustion method holds great promise for applications in wide range of industrially important catalytic reactions.
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Affiliation(s)
- Aniket Kumar
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Lipeeka Rout
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India
| | | | - Rajendra S Dhaka
- Novel Materials and Interface Physics Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Priyabrat Dash
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India
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Mohapatra L, Patra D, Parida K, Zaidi SJ. Enhanced Photocatalytic Activity of a Molybdate-Intercalated Iron-Based Layered Double Hydroxide. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601191] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Kulamani Parida
- Centre for Nano Science and Nano Technology; ITER; Siksha “O” Anusandhan University; India
| | - Syed Javaid Zaidi
- Center for Advanced Materials (CAM); Qatar University (QU); Doha Qatar
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22
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Johnson J, Bakranov N, Moniruddin M, Iskakov R, Kudaibergenov S, Nuraje N. Spontaneous polarization field-enhanced charge separation for an iron oxide photo-catalyst. NEW J CHEM 2017. [DOI: 10.1039/c7nj03629a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hierarchically assembled photocatalysts consisting of iron oxide and zinc oxide with a nanosheet structure exhibited an enhanced photocurrent density in water splitting.
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Affiliation(s)
- J. Johnson
- Department of Chemical Engineering
- Texas Tech University
- Lubbock
- USA
| | - N. Bakranov
- Department of Chemical Engineering
- Texas Tech University
- Lubbock
- USA
- Department of Physics
| | - M. Moniruddin
- Department of Chemical Engineering
- Texas Tech University
- Lubbock
- USA
| | - R. Iskakov
- Department of Physics
- Kazakh National Technical University
- Almaty
- Kazakhstan
| | - S. Kudaibergenov
- Department of Physics
- Kazakh National Technical University
- Almaty
- Kazakhstan
| | - N. Nuraje
- Department of Chemical Engineering
- Texas Tech University
- Lubbock
- USA
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Abstract
Solution combustion is an exciting phenomenon, which involves propagation of self-sustained exothermic reactions along an aqueous or sol-gel media. This process allows for the synthesis of a variety of nanoscale materials, including oxides, metals, alloys, and sulfides. This Review focuses on the analysis of new approaches and results in the field of solution combustion synthesis (SCS) obtained during recent years. Thermodynamics and kinetics of reactive solutions used in different chemical routes are considered, and the role of process parameters is discussed, emphasizing the chemical mechanisms that are responsible for rapid self-sustained combustion reactions. The basic principles for controlling the composition, structure, and nanostructure of SCS products, and routes to regulate the size and morphology of the nanoscale materials are also reviewed. Recently developed systems that lead to the formation of novel materials and unique structures (e.g., thin films and two-dimensional crystals) with unusual properties are outlined. To demonstrate the versatility of the approach, several application categories of SCS produced materials, such as for energy conversion and storage, optical devices, catalysts, and various important nanoceramics (e.g., bio-, electro-, magnetic), are discussed.
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Affiliation(s)
- Arvind Varma
- School of Chemical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | | | - Alexander S Rogachev
- Institute of Structural Macrokinetics and Materials Science, RAS , Chernogolovka 142432, Russia.,National University of Science and Technology, MISiS , Moscow 119049, Russia
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Wang L, Kumeria T, Santos A, Forward P, Lambert MF, Losic D. Iron Oxide Nanowires from Bacteria Biofilm as an Efficient Visible-Light Magnetic Photocatalyst. ACS Appl Mater Interfaces 2016; 8:20110-20119. [PMID: 27420121 DOI: 10.1021/acsami.6b06486] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Naturally produced iron oxide nanowires by Mariprofundus ferrooxydans bacteria as biofilm are evaluated for their structural, chemical, and photocatalytic performance under visible-light irradiation. The crystal phase structure of this unique natural material presents a 1-dimensional (1D) nanowire-like geometry, which is transformed from amorphous to crystalline (hematite) by thermal annealing at high temperature without changing their morphology. This study systematically assesses the effect of different annealing temperatures on the photocatalytic activity of iron oxide nanowires produced by Mariprofundus ferrooxydans bacteria. The nanowires processed at 800 °C were the most optimal for photocatalytic applications degrading a model dye (rhodamine B) in less than an hour. These nanowires displayed excellent reusability with no significant loss of activity even after 6 cycles. Kinetic studies by using hydrogen peroxide (radical generator) and isopropyl alcohol (radical scavenger) suggest that OH• is the dominant photooxidant. These nanowires are naturally produced, inexpensive, highly active, stable, and magnetic and have the potential to be used for broad applications including environmental remediation, water disinfection, and industrial catalysis.
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Affiliation(s)
| | | | | | - Peter Forward
- South Australian (SA) Water , Adelaide, SA 5005, Australia
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25
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Shan L, Liu Y, Suriyaprakash J, Ma C, Wu Z, Dong L, Liu L. Highly efficient photocatalytic activities, band alignment of BiVO4/BiOCl {001} prepared by in situ chemical transformation. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2015.10.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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27
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Gao Y, Meng F, Li X, Wen JZ, Li Z. Factors controlling nanosized Ni–Al2O3 catalysts synthesized by solution combustion for slurry-phase CO methanation: the ratio of reducing valences to oxidizing valences in redox systems. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01603k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ratio of urea to nitrates was investigated with regard to the precursor solution, combustion process, and Ni-Al2O3 catalyst structures and activity.
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Affiliation(s)
- Yuan Gao
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Institute of Coal Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Fanhui Meng
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Institute of Coal Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Xin Li
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Institute of Coal Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - John Z. Wen
- Department of Mechanical and Mechatronics Engineering
- University of Waterloo
- Waterloo
- Canada
| | - Zhong Li
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Institute of Coal Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
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28
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Affiliation(s)
- Bharat Kumar
- Department of Chemistry; Indian Institute of Technology, Hauz Khas; New Delhi 110016 India), Fax
| | - Gyandshwar Kumar Rao
- Centre for Catalysis Research and Innovation and Department of Chemistry and Biomolecular Sciences; University of Ottawa; Ottawa Ontario K1N 6N5 Canada
| | - Soumen Saha
- Department of Chemistry; Indian Institute of Technology, Hauz Khas; New Delhi 110016 India), Fax
| | - Ashok K. Ganguli
- Department of Chemistry; Indian Institute of Technology, Hauz Khas; New Delhi 110016 India), Fax
- Institute of Nano Science and Technology; Mohali, Punjab 160062 India
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29
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Li FT, Ran J, Jaroniec M, Qiao SZ. Solution combustion synthesis of metal oxide nanomaterials for energy storage and conversion. Nanoscale 2015; 7:17590-610. [PMID: 26457657 DOI: 10.1039/c5nr05299h] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The design and synthesis of metal oxide nanomaterials is one of the key steps for achieving highly efficient energy conversion and storage on an industrial scale. Solution combustion synthesis (SCS) is a time- and energy-saving method as compared with other routes, especially for the preparation of complex oxides which can be easily adapted for scale-up applications. This review summarizes the synthesis of various metal oxide nanomaterials and their applications for energy conversion and storage, including lithium-ion batteries, supercapacitors, hydrogen and methane production, fuel cells and solar cells. In particular, some novel concepts such as reverse support combustion, self-combustion of ionic liquids, and creation of oxygen vacancies are presented. SCS has some unique advantages such as its capability for in situ doping of oxides and construction of heterojunctions. The well-developed porosity and large specific surface area caused by gas evolution during the combustion process endow the resulting materials with exceptional properties. The relationship between the structural properties of the metal oxides studied and their performance is discussed. Finally, the conclusions and perspectives are briefly presented.
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Affiliation(s)
- Fa-tang Li
- College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China and School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Jingrun Ran
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, USA
| | - Shi Zhang Qiao
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
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Majhi SM, Rai P, Yu YT. Facile Approach to Synthesize Au@ZnO Core-Shell Nanoparticles and Their Application for Highly Sensitive and Selective Gas Sensors. ACS Appl Mater Interfaces 2015; 7:9462-8. [PMID: 25901904 DOI: 10.1021/acsami.5b00055] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We successfully prepared Au@ZnO core-shell nanoparticles (CSNPs) by a facile low-temperature solution route and studied its gas-sensing properties. The obtained Au@ZnO CSNPs were carefully characterized by X-ray diffraction, transmission electron microscopy (TEM), high-resolution TEM, and UV-visible spectroscopy. Mostly spherical-shaped Au@ZnO CSNPs were formed by 10-15 nm Au NPs in the center and by 40-45 nm smooth ZnO shell outside. After the heat-treatment process at 500 °C, the crystallinity of ZnO shell was increased without any significant change in morphology of Au@ZnO CSNPs. The gas-sensing test of Au@ZnO CSNPs was examined at 300 °C for various gases including H2 and compared with pure ZnO NPs. The sensor Au@ZnO CSNPs showed the high sensitivity and selectivity to H2 at 300 °C. The response values of Au@ZnO CSNPs and pure ZnO NPs sensors to 100 ppm of H2 at 300 °C were 103.9 and 12.7, respectively. The improved response of Au@ZnO CSNPs was related to the electronic sensitization of Au NPs due to Schottky barrier formation. The high selectivity of Au@ZnO CSNPs sensor toward H2 gas might be due to the chemical as well as catalytic effect of Au NPs.
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Affiliation(s)
- Sanjit Manohar Majhi
- †Division of Advanced Materials Engineering and Research Centre for Advanced Materials Development, College of Engineering, Chonbuk National University, Jeonju 561-756, South Korea
| | - Prabhakar Rai
- ‡Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Yeon-Tae Yu
- †Division of Advanced Materials Engineering and Research Centre for Advanced Materials Development, College of Engineering, Chonbuk National University, Jeonju 561-756, South Korea
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31
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Muthukrishnaraj A, Vadivel S, Kamalakannan VP, Balasubramanian N. α-Fe2O3/reduced graphene oxide nanorod as efficient photocatalyst for methylene blue degradation. ACTA ACUST UNITED AC 2014. [DOI: 10.1179/1433075x14y.0000000251] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- A. Muthukrishnaraj
- Department of Chemical EngineeringAC Tech campus, Anna University, Chennai-25, India
| | - S. Vadivel
- Department of Chemical EngineeringAC Tech campus, Anna University, Chennai-25, India
| | - V. P. Kamalakannan
- Department of Chemical EngineeringAC Tech campus, Anna University, Chennai-25, India
| | - N. Balasubramanian
- Department of Chemical EngineeringAC Tech campus, Anna University, Chennai-25, India
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32
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Liang YN, Li Y, Ang C, Shen Y, Chi D, Hu X. Novel low temperature synthesis route for functional Au/ZnFe mixed oxide nanohybrids. ACS Appl Mater Interfaces 2014; 6:12406-12412. [PMID: 25091275 DOI: 10.1021/am502256e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
ZnFe layered double hydroxide (LDH) was synthesized through which the [AuCl4](-) anions were directly intercalated in situ. Low temperature calcination converts the [AuCl4](-) intercalated LDH into an intimately mixed ZnFe metal oxides containing favorably dispersed Au nanoparticles. The unique microstructure exhibited substantially improved photocatalytic activity by more than 40 times compared to the baseline material intercalated with [CO3](2-). Such improvement is unprecedented among noble metal decorated photocatalyst materials and is elucidated based on the mechanisms of morphology evolution.
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Affiliation(s)
- Yen Nan Liang
- School of Materials Science and Engineering, Nanyang Technological University , Nanyang Avenue, Singapore 639798, Singapore
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33
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Pradhan GK, Reddy KH, Parida K. Facile fabrication of mesoporous α-Fe2O3/SnO2 nanoheterostructure for photocatalytic degradation of malachite green. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.10.038] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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34
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Xing C, Zhang Y, Wu Z, Jiang D, Chen M. Ion-exchange synthesis of Ag/Ag2S/Ag3CuS2ternary hollow microspheres with efficient visible-light photocatalytic activity. Dalton Trans 2014; 43:2772-80. [DOI: 10.1039/c3dt52875h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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35
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Michael RJV, Sambandam B, Muthukumar T, Umapathy MJ, Manoharan PT. Spectroscopic dimensions of silver nanoparticles and clusters in ZnO matrix and their role in bioinspired antifouling and photocatalysis. Phys Chem Chem Phys 2014; 16:8541-55. [DOI: 10.1039/c4cp00169a] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Pradhan GK, Padhi DK, Parida KM. Fabrication of α-Fe2O3 nanorod/RGO composite: a novel hybrid photocatalyst for phenol degradation. ACS Appl Mater Interfaces 2013; 5:9101-10. [PMID: 23962068 DOI: 10.1021/am402487h] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We report herein the fabrication of a hematite nanorod-graphene composite (α-Fe2O3 nanorod/RGO) via a facile template-free hydrothermal route with an aim to improve the photocatalytic efficiency of the α-Fe2O3 nanorod. The structural and morphological characterizations of the as-prepared composites were carried out using X-ray diffraction, Raman spectra, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, N2 adsorption-desorption, etc. The α-Fe2O3 nanorods were well-decorated on the surface of the graphene sheets, which helps in electron transfer from α-Fe2O3 to graphene and hence can delay the recombination process, leading to the improvement in photocatalytic activity. The composite containing 5 wt % RGO and α-Fe2O3 nanorods shows a 4-fold enhancement in the photocatalytic activity. The performance of photocatalytic activity was discussed in light of surface area, interaction between nanorods and graphene nanosheets, synergism between α-Fe2O3 nanorods and RGO sheets, light-harvesting properties of the composites, photoluminescence spectra, photocurrent measurement, and hydroxyl radical formation.
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Affiliation(s)
- Gajendra Kumar Pradhan
- Colloids and Materials Chemistry Department, CSIR-Institute of Minerals & Materials Technology , Bhubaneswar-751013, Odisha, India
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Palanisamy B, Babu CM, Sundaravel B, Anandan S, Murugesan V. Sol-gel synthesis of mesoporous mixed Fe2O3/TiO2 photocatalyst: application for degradation of 4-chlorophenol. J Hazard Mater 2013; 252-253:233-42. [PMID: 23535564 DOI: 10.1016/j.jhazmat.2013.02.060] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 02/10/2013] [Accepted: 02/28/2013] [Indexed: 05/06/2023]
Abstract
Photosensitization of TiO2 with other transition metal oxides can extend its light absorption property in the visible region. Such materials could emerge as excellent catalysts for solar photocatalytic degradation. In the present study mesoporous Fe2O3/TiO2 (10, 30, 50, 70 and 90 wt% Fe2O3) photocatalysts were synthesized by sol-gel process and characterized using different techniques. The XRD patterns exhibited the presence of mesoporous structure and isomorphic substitution of Fe(3+) in TiO2 at low Fe(3+) loading and Ti(4+) in Fe2O3 at high Fe(3+) loading. The XPS results revealed the presence of Ti(4+) and Fe(3+) in Fe2O3/TiO2 materials. The DRS UV-vis spectra showed a shift in the band gap excitation of TiO2 to longer wavelength, thus illustrating incorporation of Fe(3+) in TiO2. In addition, free TiO2 and Fe2O3 particles were also present. Their photocatalytic activity was tested for the degradation of 4-chlorophenol in aqueous medium using sunlight. The activity of the catalysts followed the order: meso-30 wt% Fe2O3/TiO2>meso-10 wt% Fe2O3/TiO2>meso-50 wt% Fe2O3/TiO2>meso-70 Fe2O3/TiO2>meso-90 wt% Fe2O3/TiO2>meso-Fe2O3>meso-TiO2. This order concluded that mesoporous Fe2O3/TiO2 could be an active catalyst for pollutant degradation, as TiO2 with framework Fe(3+) and photosensitization with free Fe2O3 were involved in the activity.
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Affiliation(s)
- B Palanisamy
- Department of Chemistry, Anna University, Chennai 600 025, India
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Jeyalakshmi V, Rajalakshmi K, Mahalakshmy R, Krishnamurthy KR, Viswanathan B. Application of photo catalysis for mitigation of carbon dioxide. Res Chem Intermed 2013; 39:2565-602. [DOI: 10.1007/s11164-012-0783-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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Martha S, Reddy KH, Biswal N, Parida K. Facile synthesis of InGaZn mixed oxide nanorods for enhanced hydrogen production under visible light. Dalton Trans 2012; 41:14107-16. [DOI: 10.1039/c2dt31949g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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